KR910007742Y1 - Tube expanders - Google Patents

Tube expanders Download PDF

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Publication number
KR910007742Y1
KR910007742Y1 KR2019890016904U KR890016904U KR910007742Y1 KR 910007742 Y1 KR910007742 Y1 KR 910007742Y1 KR 2019890016904 U KR2019890016904 U KR 2019890016904U KR 890016904 U KR890016904 U KR 890016904U KR 910007742 Y1 KR910007742 Y1 KR 910007742Y1
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KR
South Korea
Prior art keywords
tip
expansion
pipe
housing
connecting bar
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KR2019890016904U
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Korean (ko)
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KR910008740U (en
Inventor
김언석
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주식회사 금성사
이헌조
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Priority to KR2019890016904U priority Critical patent/KR910007742Y1/en
Publication of KR910008740U publication Critical patent/KR910008740U/en
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Publication of KR910007742Y1 publication Critical patent/KR910007742Y1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08Tube expanders
    • B21D39/20Tube expanders with mandrels, e.g. expandable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/06Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes in openings, e.g. rolling-in

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

내용 없음.No content.

Description

파이프의 확관장치Pipe expander

제1도는 본 고안의 요부 확관팁과 하우징의 분해 사시도1 is an exploded perspective view of the main portion expansion tip and the housing of the present invention

제2도는 본 고안장치의 단면도로서 a는 확관시의 상태도, b는 확관팁을 파이프에서 빼낼때의 상태도.2 is a cross-sectional view of the device of the present invention, a is a state at the time of expansion, b is a state at the time of removing the expansion tip from the pipe.

제3도는 팁연결바의 후단에 설치되는 구동 유니트의 구조도.3 is a structural diagram of a drive unit installed at the rear end of the tip connection bar.

제4도는 종래 장치를 나타낸 단면도.4 is a cross-sectional view showing a conventional device.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 확관팁 1a : 경사면1: Expansion tip 1a: Slope

2 : 팁연결바 6 : 팁하우징2: tip connection bar 6: tip housing

6a : 용출부 6b : 절개홈6a: eluent 6b: incision groove

7 : 코일스프링7: coil spring

본 고안은 동파이프와 같은 파이프를 확관시키기 위한 장치에 관한 것으로, 좀더 구체적으로는 장치를 구성하는 부품을 분해, 결합하지 않고 파이프의 연속적인 확관작업이 가능해지고 파이프의 부분적인 확관도 가능해질 수 있는 개선된 구조의 장치를 제공하기 위한 것이다.The present invention relates to an apparatus for expanding pipes such as copper pipes, and more specifically, it is possible to continuously expand pipes and to partially expand pipes without disassembling or joining the components constituting the device. It is to provide an apparatus of an improved structure.

일반적으로 냉장고나 에어컨등에 사용되는 열교환기는 동파이프와 방열핀으로 구성되어 있으며, 조립시 동파이프를 확관시켜 방열판이 동파이프의 원주면에 고정되게 하고있다.In general, a heat exchanger used in a refrigerator or an air conditioner is composed of a copper pipe and a heat dissipation fin, and the heat pipe is fixed to the circumferential surface of the copper pipe by expanding the copper pipe during assembly.

파이프의 원주면에 방열핀을 조립하기 위한 종래의 장치, 예를들어 제4도에 도시한 바와같은 장치는 확관팁(11)의 후단부에 팁연결바(2)를 나사끼우기로 결합하고 팁연결바(2)의 후단에는 제3도와 같이 모터(4)와 에어척(Air Chuck) (5)으로 된 구동유니트(3)을 설치한 구조로 되어 있다.Conventional devices for assembling the heat dissipation fins on the circumferential surface of the pipe, for example as shown in FIG. 4, have a tip connecting bar 2 screwed into the rear end of the expansion tip 11 and a tip connection. The rear end of the bar 2 has a structure in which a drive unit 3 made of a motor 4 and an air chuck 5 is provided as shown in FIG.

따라서 파이프(8)의 확관작업시 구동유니트(3)에 결합된 체인(도시는 생략함)을 구동시키던 구동유니트(3)가 후진(도면상 우측 방향)함과 동시에 에어척(5)에 결합된 팁연결바(2)와 팁연결바(2)에 고정된 확관팁(11)이 함께 후진하게 되므로 파이프(8)는 확관팁(11)에 형성된 용출부(11a)에 의해 확관되며, 이에 따라 방열핀(12)은 파이프(8)의 원주면에 고정된다.Therefore, when the pipe 8 is expanded, the drive unit 3 which drives the chain (not shown) coupled to the drive unit 3 moves backward (rightward in the drawing) and is coupled to the air chuck 5 at the same time. Since the tip connection bar 2 and the expansion tip 11 fixed to the tip connection bar 2 are retracted together, the pipe 8 is expanded by the elution part 11a formed in the expansion tip 11. Accordingly, the heat radiation fins 12 are fixed to the circumferential surface of the pipe 8.

그러나 상기와 같은 종래의 장치는 단지 확관팁(11)의 이동에 의해 파이프(8)가 확관되는 단순한 구조이어서 하나의 파이프를 확관시키고 그 다음 파이프를 확관할 때에는 팁연결바(2)에 에어척(5)에서 분리하여 그 다음 가공할 파이프의 앞부분까지 이동시킨 후 다시 팁연결바(2)를 에어척(5)에 결합해 주어야 하는 불편함이 있다.However, the conventional apparatus as described above is a simple structure in which the pipe 8 is expanded by the movement of the expansion tip 11 so that when one pipe is expanded and the next pipe is expanded, an air chuck is installed on the tip connecting bar 2. It is inconvenient to separate from (5) and move the tip connecting bar 2 to the air chuck 5 after moving to the front part of the pipe to be processed next.

이러한 팁연결바(2)와 에어척(5)의 분리 및 결합작업은 파이프 하나를 확관할 때마다 반복적으로 행하여지는데, 통상 팁연결바(2)는 그 길이가 5m 이상이어서 이동에 어려움이 따르고 작업능률이 떨어지게 된다.This tip connection bar (2) and the air chuck (5) separation and joining is performed repeatedly each time the pipe is expanded, usually the tip connection bar (2) is 5m or more in length and difficult to move Work efficiency is reduced.

또 종래의 장치로는 파이프의 전체길이를 확관시킬 수 있을뿐 부분적인 확관작업은 불가능한 결점도 있다.In addition, the conventional apparatus can expand the entire length of the pipe, there is a drawback that the partial expansion work is impossible.

본 고안은 확관팁의 바깥둘레에 신축이 가능한 팁하우징을 결합하여 이 팁하우징의 신축작동에 의해 확관팁을 분해, 결합하지 않고도 파이프를 연속적으로 확관시킬 수 있음은 물론 부분적인 확관 작업도 가능해 질수 있도록 한 것인바, 이를 첨부된 도면에 의해 더욱 상세히 설명하면 다음과 같다.The present design combines a flexible tip housing with an outer circumference of the expansion tip, which allows the pipe to be continuously expanded without disassembling and joining the expansion tip. If so, it will be described in more detail by the accompanying drawings as follows.

확관팁(1)의 후단에 팁연결바(2)를 나사끼우기로 결합하고 팁연결바(2)의 후방에는 모터(4)와 에어척(5)으로 구성된 구동유니트(3)를 설치한 것에 있어서, 확관팁(1)의 원주면을 후방으로 점차 직경이 작아지는 경사면(1a)으로 형성함과 함께 원주면의 바깥둘레에 용출부(6a)와 다수의 절개홈(6b)을 가진 팁하우징(6)을 결합하고 팁하우징(6)과 팁연결바(2) 사이에는 코일 스프링(7)을 설치하여 확관팁(1)의 이동에 따라 팁하우징(6)의 용출부(6a) 외경이 가변될 수 있도록 한것이다.The tip connecting bar (2) is screwed into the rear end of the expansion tip (1), and the driving unit (3) consisting of the motor (4) and the air chuck (5) is installed at the rear of the tip connecting bar (2). In this case, the circumferential surface of the expansion tube 1 is formed as an inclined surface 1a which gradually decreases in diameter, and a tip housing having an eluting portion 6a and a plurality of cutout grooves 6b on the outer circumference of the circumferential surface. (6) and the coil spring (7) is installed between the tip housing (6) and the tip connecting bar (2), the outer diameter of the eluting portion (6a) of the tip housing (6) in accordance with the movement of the expansion tip (1) It is intended to be variable.

이와같이 구성된 본 고안 장치를 이용하여 파이프(8)를 확관시키는 작동과 그 효과를 설명한다.The operation of expanding the pipe 8 using the device of the present invention configured as described above and the effect thereof will be described.

먼저 파이프(8)를 확관시킬때 종래의 장치와 마찬가지로 구동유니트(3)에 의해 팁연결바(2)를 후진시키면 팁연결바(2)와 연결된 확관팁(1)이 함께 후진하게 되고 확관팁(1)이 후진하면 제2도 a와 같이 절개홈(6b)에 의해 신축 가능한 팁하우징(6)의 용출부(6a) 부분이 확관팁(1)의 경사면(1a) 큰직경 부분에 접속하면서 벌어지게 되므로 팁하우징(6)의 후진에 따라 파이프(8)는 확관된다.First, when the pipe 8 is expanded, as in the conventional apparatus, when the tip connecting bar 2 is reversed by the driving unit 3, the expansion tip 1 connected to the tip connecting bar 2 is reversed together and the expansion tip is expanded. When (1) moves backward, as shown in FIG. 2A, the elution portion 6a portion of the tip housing 6, which can be stretched by the incision groove 6b, is connected to the large diameter portion of the inclined surface 1a of the expansion tip 1. As it opens, the pipe 8 expands as the tip housing 6 moves backward.

또 본 고안 장치는 팁연결바(2)를 에어척(5)에서 분리하지 않고도 연속적인 확관작업이 가능해지는데, 하나의 파이프의 확관작업이 끝나고 그 다음 파이프를 확관할때 확관하고자 하는 파이프(8)의 후단부를 팁하우징(6)에 접속시킨 후 팁연결바(2)를 전진시켜 주면 팁하우징(6)은 정지된 상태에서 확관팁(1)만 전진하게 되므로 제2도 b와 같이 코일스프링(7)은 압축되고 이에따라 팁하우징(6)은 확관팁(1)의 경사면(1a) 작은 직경부분에 접속됨과 동시에 용출부(6a)의 전체 외경은 작아 진다.In addition, the device can be continuously expanded without removing the tip connecting bar (2) from the air chuck (5), the pipe to be expanded when the expansion of one pipe after the expansion pipe (8) After connecting the rear end of the to the tip housing (6) and advance the tip connecting bar (2), the tip housing (6) is advanced only the expansion tip (1) in the stopped state, so the coil spring as shown in Figure 2 b (7) is compressed so that the tip housing 6 is connected to the small diameter part of the inclined surface 1a of the expansion pipe 1, and the whole outer diameter of the elution part 6a becomes small.

따라서 확관팁(1)과 팁하우징(6)을 파이프(8)의 내공간부를 통해 파이프의 앞부분으로 이동시키는 것이 가능하고 확관팁(1)과 팁하우징(6)의 파이프의 앞부분으로 이동된 후 팁연결바(2)를 다시 후진시키면 전술한 바와같은 작동에 의해 파이프가 확관된다.Therefore, it is possible to move the expansion tip (1) and the tip housing (6) to the front of the pipe through the inner space of the pipe (8), and then move to the front of the pipe of the expansion tip (1) and the tip housing (6) When the tip connecting bar 2 is reversed again, the pipe is expanded by the operation as described above.

또 본 고안은 상기와 같이 팁하우징(6)의 용출부(6a) 외경이 가변 되므로 확관팁(1)과 팁하우징(6)을 소정의 위치로 이동시킨 후 후진시키고, 다시 소정의 위치로 이동시킨 후 후진시키는 수단에 의해 파이프를 부분적으로 확관시킬 수 있게 된다.In addition, according to the present invention, the outer diameter of the eluting portion 6a of the tip housing 6 is variable as described above, so that the expansion tip 1 and the tip housing 6 are moved back to a predetermined position, and then moved back to a predetermined position. It is possible to partially expand the pipe by means of reversing and then reversing.

이상에서와 같이 본 고안은 하나의 파이프를 확관시킨 후 또 다른 파이프를 확관할때마다 확관팁의 후단에 결합된 연결바를 에어척과 분해, 결합 하여야 했던 종래의 장치와는 달리 구동유니트에 의해 확관팁을 이동시키는 작동에 의해 파이프의 연속적인 확관작업이 가능해 지므로 확관작업이 용이해지고 작업능률이 향상되며, 하나의 파이프를 원하는 부위마다 다단으로 확관시킬 수 있는 효과도 있다.As described above, the present invention, unlike the conventional device, which had to disassemble and combine the connecting bar coupled to the rear end of the expansion tip with the air chuck every time after the expansion of one pipe and the other pipe, the expansion tip by the driving unit By moving the pipes, the pipes can be continuously expanded, so that the pipes can be easily expanded and work efficiency is improved, and one pipe can be expanded in multiple stages for each desired area.

Claims (1)

확관팁(11)의 후단부에 팁연결바(2)를 나사끼우기로 결합하고 팁연결바(2)의 후방에는 모터(4)와 에어척(5)으로 구성된 구동유니트(3)를 설치한 것에 있어서, 확관팁(1)의 원주면을 후방으로 점차 직경이 작아지는 경사면(1a)으로 형성함과 함께 원주면의 바깥둘레에 용출부(6a)와 다수의 절개홈(6b)을 가진 팁하우징(6)을 결합하고 팁하우징(6)과 팁연결바(2) 사이에는 코일 스프링(7)을 설치하여 확관팁(1)의 이동에 따라 팁하우징(6)의 용출부(6a) 외경이 가변될 수 있도록 함을 특징으로 하는 파이프의 확관장치.The tip connecting bar 2 is screwed into the rear end of the expansion tip 11 and the driving unit 3 composed of the motor 4 and the air chuck 5 is installed at the rear of the tip connecting bar 2. In this case, the circumferential surface of the expansion tip (1) is formed as an inclined surface (1a) gradually decreases in diameter to the rear, and the tip having the elution portion (6a) and a plurality of cutout groove (6b) on the outer circumference Coupling the housing 6 and installing a coil spring 7 between the tip housing 6 and the tip connecting bar 2, the outer diameter of the elution portion 6a of the tip housing 6 as the expansion tip 1 moves. It is possible to be variable pipe expansion device.
KR2019890016904U 1989-11-15 1989-11-15 Tube expanders KR910007742Y1 (en)

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KR2019890016904U KR910007742Y1 (en) 1989-11-15 1989-11-15 Tube expanders

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KR910007742Y1 true KR910007742Y1 (en) 1991-10-05

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KR100917874B1 (en) * 2009-04-16 2009-09-16 일진파워텍(주) Pipe extending device
WO2011086713A1 (en) * 2010-01-15 2011-07-21 京進工業株式会社 Heat exchanger manufacturing apparatus

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